Sugino RD2 165mm Aluminum JIS Square Taper Crank Arms, Black Tooth Count_39t this coil spring is an

this coil spring is an essential upgrade for riders seeking customized spring rates and enhanced shock responsiveness

Innovative Thru-Axle Adapter System allows seamless integration with SeaSucker racks

Crafted from durable Cr-Mo (chromoly) steel

this 38mm damper body tube incorporates the revolutionary Charger3 damper technology

making them ideal for outdoor riding

Sugino RD2 165mm Aluminum JIS Square Taper Crank Arms, Black Tooth Count_39t this coil spring is anPremium forged 6061 T6 aluminum double square taper crank. 500g . Chainring sold separately: see Chainring section for Road chainring options . *BB sold separately: use SO2933 (103mm steel cups) or SO2929 (103mm alloy cups) for single double setup